Filtry
wszystkich: 791
wybranych: 633
Wyniki wyszukiwania dla: biomedical polyurethanes
-
Recent Advances in Development of Waste-Based Polymer Materials: A Review
PublikacjaLimited petroleum sources, suitable law regulations, and higher awareness within society has caused sustainable development of manufacturing and recycling of polymer blends and composites to be gaining increasing attention. This work aims to report recent advances in the manufacturing of environmentally friendly and low-cost polymer materials based on post-production and postconsumer wastes. Sustainable development of three groups...
-
New sorbent materials for selective extraction of cocaine and benzoylecgonine from human urine samples
Publikacja -
In honor of the 70th birthday of Professor Roman Kaliszan
Publikacja -
Combined computational-experimental approach to predict blood–brain barrier (BBB) permeation based on “green” salting-out thin layer chromatography supported by simple molecular descriptors
Publikacja -
The metabolic profiles of pterin compounds as potential biomarkers of bladder cancer—Integration of analytical-based approach with biostatistical methodology
Publikacja -
Determination of pterins in urine by HPLC with UV and fluorescent detection using different types of chromatographic stationary phases (HILIC, RP C8, RP C18)
Publikacja -
Simultaneous determination of creatinine and acetate by capillary electrophoresis with contactless conductivity detector as a feasible approach for urinary tract infection diagnosis
Publikacja -
Robust HPLC–MS/MS method for levofloxacin and ciprofloxacin determination in human prostate tissue
Publikacja -
Urine metabolic fingerprinting using LC–MS and GC–MS reveals metabolite changes in prostate cancer: A pilot study
Publikacja -
Altered levels of nucleoside metabolite profiles in urogenital tract cancer measured by capillary electrophoresis
Publikacja -
Preface
Publikacja -
Steroid profiles as potential biomarkers in patients with urogenital tract cancer for diagnostic investigations analyzed by liquid chromatography coupled to mass spectrometry
Publikacja -
Metabolomics for laboratory diagnostics
Publikacja -
The potential role of fatty acids in prostate cancer determined by GC–MS analysis of formalin-fixed paraffin-embedded tissue samples
Publikacja -
Design of Experiments in metabolomics-related studies: An overview
Publikacja -
Analysis of urinary nucleosides as potential cancer markers determined using LC–MS technique
Publikacja -
Development and validation of urinary nucleosides and creatinine assay by capillary electrophoresis with solid phase extraction
Publikacja -
Blood–brain barrier permeability mechanisms in view of quantitative structure–activity relationships (QSAR)
Publikacja -
Metabolomics in cardiovascular diseases
Publikacja -
Identification of lipid fraction constituents from grasshopper (Chorthippus spp.) abdominal secretion with potential activity in wound healing with the use of GC–MS/MS technique
Publikacja -
Increasing conclusiveness of metabonomic studies by cheminformatic preprocessing of capillary electrophoretic data on urinary nucleoside profiles
Publikacja -
Separation of nicotinic acid and its structural isomers using 1-ethyl-3-methylimidazolium ionic liquid as a buffer additive by capillary electrophoresis
Publikacja -
Human red blood cells targeted metabolome analysis of glycolysis cycle metabolites by capillary electrophoresis using an indirect photometric detection method
Publikacja -
Quantitative determination of diazepam, nitrazepam and flunitrazepam in tablets using thin-layer chromatography–densitometry technique
Publikacja -
Application of the near-infrared spectroscopy in the pharmaceutical technology
PublikacjaNear-infrared (NIR) spectroscopy is currently the fastest-growing and the most versatile analytical method not only in the pharmaceutical sciences but also in the industry. This review focuses on recent NIR applications in the pharmaceutical technology. This article covers monitoring, by NIR, of many manufacturing processes, such as granulation, mixing or drying, in order to determine the end-point of these processes. In this...
-
Technology of an adhesive silicone film as drug carrier in transdermal therapy I. Analytical methods used for characterization and design of the universal elastomer layers
PublikacjaSilicone polymers possess unique properties, which make them suitable for many different applications, for example in the pharmaceutical and medical industry. To create an adhesive silicone film, the appropriate silicone components have to be chosen first. From these components two layers were made: an adhesive elastomer applied on the skin, and a non-adhesive elastomer on the other side of the film. The aim of this study was...
-
Detection of some volatile degradation products released during photoexposition of ranitidine in a solid state
PublikacjaRanitidine (RAN) is on top of the list of prescribed drugs, due to its popularity as a selective H2-receptor antagonist, which efficiently decreases the amount of acid produced in the stomach. RAN is not stable both in a solid state and in a solution, which creates manufacturing problems, requires appropriate storage conditions, and results in a short drug shelf-life. The aim of this work was to study the emission of volatile...
-
Evaluation of the photoprotective effect of β-cyclodextrin on the emission of volatile degradation products of ranitidine
PublikacjaThe process of the photo-excitation of ranitidine hydrochloride (RAN) in a solid state makes visible changes to its colour and generates an unpleasant odour. The purpose of the present study was to observe the protective effects of ˇ-cyclodextrin (CD) complexation as well as the effect of the mixture of two stoichiometries 1:1 and 1:2 (RAN:CD, IC) on the photostability of samples in a solid state. Samples of inclusion complexes...
-
Application of vibrational spectroscopy, thermal analyses and X-Ray diffraction in the rapid evaluation of the stability in solid-state of ranitidine, famotidine and cimetidine
PublikacjaThis paper reports the study on applicability of Fourier transform infrared (FTIR), near-infrared (NIR) and Raman spectroscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) for the estimation of the chemical stability and photostability of histamine H2-receptor antagonist substances. Ranitidine hydrochloride (RAN), famotidine (FAM) and cimetidine (CIM) were tested and differences in sensitivity were measured...
-
Quantitative structure-(chromatographic) retention relationship models for dissociating compounds
Publikacja -
Combined pH/organic solvent gradient HPLC in analysis of forensic material
Publikacja -
The simultaneous determination of hydrophobicity and dissociation constant by liquid chromatography–mass spectrometry
Publikacja -
Towards classification of patients based on surface EMG data of temporomandibular joint muscles using self-organising maps
Publikacja -
PLE in the analysis of plant compounds
Publikacja -
PLE in the analysis of plant compounds
Publikacja -
Technical foundations for noninvasive assessment of changes in the width of the subarachnoid space with near-infrared transillumination-backscattering sounding (NIR-TBSS)
PublikacjaPraca opisuje metodę transiluminacji w bliskiej podczerwieni umożliwiającą nieinwazyjne monitorowanie zmian szerokości przestrzeni podpajęczynówkowej oraz amplitudy tętnienia naczyń powierzchniowych mózgu.
-
The determination of elements in herbal teas and medicinal plant formulations and their tisanes
Publikacja -
Understanding element composition of medicinal plants used in herbalism—A case study by analytical atomic spectrometry
Publikacja -
Structure–bioavailability relationship study of genistein derivatives with antiproliferative activity on human cancer cell
Publikacja -
Research on methods for detecting respiratory rate from photoplethysmographic signal
Publikacja -
Silylation of acetaminophen by trifluoroacetamide-based silylation agents
Publikacja -
Selected analytical challenges in the determination of pharmaceuticals in drinking/marine waters and soil/sediment samples
Publikacja -
Bioaccumulation and analytics of pharmaceutical residues in the environment: A review
Publikacja -
Searching for the primary metabolic alterations of polycystic ovary syndrome by application of the untargeted metabolomics approach
PublikacjaDespite a large number of studies, the pathogenesis of polycystic ovary syndrome (PCOS) still remains unexplained. In light of ambiguous observations reported in metabolomics, there is a need to carry out studies focusing on confirming the discriminating power of the proposed metabolomics biomarkers. Our research aimed to perform a validation study of metabolites detected in our previous study from serum samples, on the new set...
-
Electrochemistry/mass spectrometry (EC/MS) for fast generation and identification of novel reactive metabolites of two unsymmetrical bisacridines with anticancer activity.
PublikacjaThe development of a new drug requires knowledge about its metabolic fate in a living organism, regarding the comprehensive assessment of both drug therapeutic activity and toxicity profiles. Electrochemistry (EC) coupled with mass spectrometry (MS) is an efficient tool for predicting the phase I metabolism of redox-sensitive drugs. In particular, EC/MS represents a clear advantage for the generation of reactive drug transformation...
-
Induced circularly polarized luminescence for revealing DNA binding with fluorescent dyes
Publikacja -
Evaluation of the photoprotective effect of ˇ-cyclodextrin on the emission of volatile degradation products of ranitidine
PublikacjaThe process of the photo-excitation of ranitidine hydrochloride (RAN) in a solid state makes visible changes to its colour and generates an unpleasant odour. The purpose of the present study was to observe the protective effects of ˇ-cyclodextrin (CD) complexation as well as the effect of the mixture of two stoichiometries 1:1 and 1:2 (RAN:CD, IC) on the photostability of samples in a solid state. Sam- ples of inclusion complexes...
-
The comparative study of micellar TLC and RP-TLC as potential tools for lipophilicity assessment based on QSRR approach
Publikacja -
Method development and validation for optimized separation of quercetin derivatives in selected Potentilla species using high-performance thin-layer chromatography photodensitometry method
Publikacja -
Application of reversed-phase thin layer chromatography and QSRR modelling for prediction of protein binding of selected β-blockers
Publikacja